Don't MISS if you read the hole from certain FastHoley arrays.

src/hydrogen-instructions.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/base/bits.h"
 #include "src/double.h"
 #include "src/factory.h"
 #include "src/hydrogen-infer-representation.h"
@@ skipping 3510 matching lines @@
 
 bool HLoadKeyed::RequiresHoleCheck() const {
   if (IsFastPackedElementsKind(elements_kind())) {
     return false;
   }
 
   if (IsExternalArrayElementsKind(elements_kind())) {
     return false;
   }
 
+  if (hole_mode() == CONVERT_HOLE_TO_UNDEFINED) {
+    return false;
+  }
+
   return !UsesMustHandleHole();
 }
 
 
 std::ostream& HLoadKeyedGeneric::PrintDataTo(
     std::ostream& os) const {  // NOLINT
   return os << NameOf(object()) << "[" << NameOf(key()) << "]";
 }
 
 
@@ skipping 1165 matching lines @@
       break;
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 } }  // namespace v8::internal